Where to spoil Skull Breaker Head

3 monsters drop Skull Breaker Head on spoil, the lowest level is 34. The chance already assumes solo spoiling with no level-difference penalty: put your own level into the calculator.

MobLvlSpoilsWhere
Ol Mahum Lord Ol Mahum Lord 34 Skull Breaker Head · chance 1.83% · 1 pcs Partisan's Hideaway
Ant Patrol Ant Patrol 34 Skull Breaker Head · chance 1.17% · 1 pcs The Ant Nest
Wasp Worker Wasp Worker 35 Skull Breaker Head · chance 1.47% · 1 pcs Beehive

What it pays and what is better to kill at your level — in the spot finder.